我试图找出为什么我的应用程序有时会在客户设备上崩溃。设备是否越狱无关紧要。我的应用程序来自AppStore。其他崩溃日志几乎相同，尽管它们的崩溃线程不同。
Hardware Model: iPhone3,1
Process: [the APP] [296]
Path: /var/mobile/Applications/06DF5BC5-F9C2-49EE-B2D5-5979C09B51A2/[the APP].app/[the APP]
Identifier: [the APP]
Version: 3.3.0
Code Type: ARM
Parent Process: launchd [1]
Date/Time: 2012-07-22 15:15:18 +0000
OS Version: iPhone OS 5.1.1 (9B206)
Report Version: 104
Exception Type: SIGSEGV
Exception Codes: SEGV_ACCERR at 0xbbadbeef
Crashed Thread: 7
Thread 0:
0 libsystem_kernel.dylib 0x35c39004 mach_msg_trap + 20
1 CoreFoundation 0x353673f3 __CFRunLoopServiceMachPort + 127
2 CoreFoundation 0x353660f1 __CFRunLoopRun + 825
3 CoreFoundation 0x352e94a5 CFRunLoopRunSpecific + 301
4 CoreFoundation 0x352e936d CFRunLoopRunInMode + 105
5 GraphicsServices 0x36f85439 GSEventRunModal + 137
6 UIKit 0x32df5cd5 UIApplicationMain + 1081
7 [the APP] 0x0000b549 main (main.m:20)
Thread 1:
0 libsystem_kernel.dylib 0x35c393a8 kevent + 24
1 libdispatch.dylib 0x3422cbc9 _dispatch_mgr_wakeup + 1
Thread 2:
0 libsystem_kernel.dylib 0x35c490d8 __psynch_mutexwait + 24
1 WebCore 0x311454ef _ZL17_WebTryThreadLockb + 215
2 WebCore 0x311a4173 _ZL19SendDelegateMessageP12NSInvocation + 707
3 WebKit 0x3507ad87 -[_WebSafeForwarder forwardInvocation:] + 119
4 CoreFoundation 0x35395a83 ___forwarding___ + 667
5 CoreFoundation 0x352f0650 _CF_forwarding_prep_0 + 48
6 WebKit 0x350816a1 WebFrameLoaderClient::dispatchDecidePolicyForNavigationAction(void (WebCore::PolicyChecker::*)(WebCore::PolicyAction), WebCore::NavigationAction const&, WebCore::ResourceRequest const&, WTF::PassRefPtr) + 221
7 WebCore 0x3120b8b9 WebCore::PolicyChecker::checkNavigationPolicy(WebCore::ResourceRequest const&, WebCore::DocumentLoader*, WTF::PassRefPtr, void (*)(void*, WebCore::ResourceRequest const&, WTF::PassRefPtr, bool), void*) + 873
8 WebCore 0x3120ae4d WebCore::FrameLoader::loadWithDocumentLoader(WebCore::DocumentLoader*, WebCore::FrameLoadType, WTF::PassRefPtr) + 913
9 WebCore 0x312092b9 WebCore::FrameLoader::load(WebCore::DocumentLoader*) + 169
10 WebCore 0x312091e5 WebCore::FrameLoader::load(WebCore::ResourceRequest const&, WebCore::SubstituteData const&, bool) + 241
11 WebKit 0x350b3f5f -[WebFrame _loadData:MIMEType:textEncodingName:baseURL:unreachableURL:] + 1119
12 WebKit 0x350b3797 -[WebFrame _loadHTMLString:baseURL:unreachableURL:] + 79
13 WebKit 0x350b37bb -[WebFrame loadHTMLString:baseURL:] + 31
14 WebCore 0x311950b5 HandleRunSource + 365
15 CoreFoundation 0x35367ad3 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
16 CoreFoundation 0x35367335 __CFRunLoopDoSources0 + 365
17 CoreFoundation 0x35366045 __CFRunLoopRun + 653
18 CoreFoundation 0x352e94a5 CFRunLoopRunSpecific + 301
19 CoreFoundation 0x352e936d CFRunLoopRunInMode + 105
20 WebCore 0x311e8ca3 _ZL12RunWebThreadPv + 403
21 libsystem_c.dylib 0x32756735 _pthread_start + 321
Thread 3:
0 libsystem_kernel.dylib 0x35c39004 mach_msg_trap + 20
1 CoreFoundation 0x353673f3 __CFRunLoopServiceMachPort + 127
2 CoreFoundation 0x3536612b __CFRunLoopRun + 883
3 CoreFoundation 0x352e94a5 CFRunLoopRunSpecific + 301
4 CoreFoundation 0x352e936d CFRunLoopRunInMode + 105
5 Foundation 0x34e22bb9 +[NSURLConnection(Loader) _resourceLoadLoop:] + 309
6 Foundation 0x34e22a81 -[NSThread main] + 73
7 Foundation 0x34eb6591 __NSThread__main__ + 1049
8 libsystem_c.dylib 0x32756735 _pthread_start + 321
Thread 4:
0 libsystem_kernel.dylib 0x35c49570 __select + 20
1 libsystem_c.dylib 0x32756735 _pthread_start + 321
Thread 5:
0 libsystem_kernel.dylib 0x35c39004 mach_msg_trap + 20
1 CoreFoundation 0x353673f3 __CFRunLoopServiceMachPort + 127
2 CoreFoundation 0x3536612b __CFRunLoopRun + 883
3 CoreFoundation 0x352e94a5 CFRunLoopRunSpecific + 301
4 CoreFoundation 0x352e936d CFRunLoopRunInMode + 105
5 YouTube 0x33e336c9 -[YTImageLoader(Internal) _startLoader] + 245
6 Foundation 0x34e22a81 -[NSThread main] + 73
7 Foundation 0x34eb6591 __NSThread__main__ + 1049
8 libsystem_c.dylib 0x32756735 _pthread_start + 321
Thread 6:
0 libsystem_kernel.dylib 0x35c49cd4 __workq_kernreturn + 8
Thread 7 Crashed:
0 WebCore 0x311454e2 _ZL17_WebTryThreadLockb + 202
1 WebCore 0x3114540f WebThreadLock + 55
2 UIKit 0x32e5537b -[UIWebTiledView layoutSubviews] + 43
3 UIKit 0x32e5534b -[UIWebDocumentView layoutSubviews] + 127
4 UIKit 0x32dcaf37 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 183
5 CoreFoundation 0x352f21fb -[NSObject performSelector:withObject:] + 43
6 QuartzCore 0x321c2aa5 -[CALayer layoutSublayers] + 217
7 QuartzCore 0x321c26bd CA::Layer::layout_if_needed(CA::Transaction*) + 217
8 QuartzCore 0x321c6843 CA::Context::commit_transaction(CA::Transaction*) + 227
9 QuartzCore 0x321c657f CA::Transaction::commit() + 315
10 QuartzCore 0x3220dd01 CA::Transaction::release_thread(void*) + 37
11 libsystem_c.dylib 0x327490ff _pthread_tsd_cleanup + 171
12 libsystem_c.dylib 0x32748d7b _pthread_exit + 123
13 libsystem_c.dylib 0x3275a0f3 pthread_exit + 31
14 Foundation 0x34e3237b +[NSThread exit] + 11
15 Foundation 0x34eb65af __NSThread__main__ + 1079
16 libsystem_c.dylib 0x32756735 _pthread_start + 321
Thread 8:
0 libsystem_kernel.dylib 0x35c49cd4 __workq_kernreturn + 8
Thread 9:
0 libsystem_kernel.dylib 0x35c49cd4 __workq_kernreturn + 8
Thread 10:
0 libsystem_kernel.dylib 0x35c49cd4 __workq_kernreturn + 8
Thread 11:
0 libsystem_kernel.dylib 0x35c49cd4 __workq_kernreturn + 8
Thread 7 crashed with ARM Thread State:
r0: 0xffffffff r1: 0x00001100 r2: 0x2ffc850c r3: 0x00000000
r4: 0xbbadbeef r5: 0x00000000 r6: 0x0054b000 r7: 0x2ffc8b4c
r8: 0x0ca32800 r9: 0x3399fc2c r10: 0x2ffc8be4 r11: 0x2ffc8ebc
ip: 0x3ee8e270 sp: 0x2ffc8b40 lr: 0x35790fef pc: 0x32c7f4e2
cpsr: 0x60000030
Binary Images:
[cut cause of char limit]
我不知道发生了什么，有人有想法吗？
答案 0 :(得分：4)
问题是您从后台线程向UI对象发送消息，这是禁止的。
线程7与堆栈跟踪崩溃进入UIView的布局机制。线程7在此代码中的事实可能是由setNeedsLayout或从该后台线程发送的其他方法产生的。
答案 1 :(得分：3)
我认为网页视图已完成加载并尝试重新加载视图，但视图控制器已加速并发布，您需要在viewWillDisappear方法中添加此视图：
- (void)viewWillDisappear:(BOOL)animated{
[super viewWillDisappear:animated];
if ([webView isLoading]) {
[webView stopLoading];
}
}
答案 2 :(得分：0)
我所在的项目看到了在WebKit上运行的基于WinTel的GWT应用程序的类似异常。已确定只有在WebKit内存不足时才会出现此特定问题。